RFL Communications 21 Sub-MUX Manual do Utilizador descarregar pdf (Página 27)

Solutions for an evolving world.

• Multiplexer voice channels

• Much like a leased line, but is generally part of a companies Comms system.

• Terminal Block connection type

• 2 or 4 wire

• Part of Channel Bank traffic/ meaning that it is not a stand alone circuit and must

relay on additional hardware.

Analog Channels

Digital Channels

Digital Microwave channels

• i.e. Voice Channels, Video, Data

• Parabolic antenna

• Point to Point/Narrow Beam

• Alignment is important

• Advantage

• is that the high frequency of microwaves

gives the microwave band a very large

information-carrying capacity; the microwave

band has a bandwidth 30 times that of all the

rest of the radio spectrum below it

• A disadvantage

• is that microwaves are limited to line of

sight propagation; they cannot pass around

hills or mountains as lower frequency radio

waves can.

• Weather

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RFL Communications 21 Sub-MUX Manual do Utilizador Página 27